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          <h1 class="post-title" itemprop="name headline">黑客情人节</h1>
        

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        <blockquote>
<p>好无(xiang)聊(ni)就写了个小程序<br><a id="more"></a><br><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">import</span> java.util.Scanner;</span><br><span class="line"></span><br><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 黑客情人节</span></span><br><span class="line"><span class="comment"> * <span class="doctag">@author</span> 比心</span></span><br><span class="line"><span class="comment"> *</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">Ta</span> </span>&#123;</span><br><span class="line">	</span><br><span class="line">	<span class="comment">//forvevr love</span></span><br><span class="line">	<span class="keyword">private</span>  <span class="keyword">static</span> <span class="keyword">int</span> FORVEVR_LOVE = <span class="number">1314</span>;</span><br><span class="line">	</span><br><span class="line">	<span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">main</span><span class="params">(String[] args)</span> </span>&#123;</span><br><span class="line">		Ta zhou = <span class="keyword">new</span> Ta();</span><br><span class="line">		</span><br><span class="line">		Scanner in = <span class="keyword">new</span> Scanner(System.in);</span><br><span class="line">		</span><br><span class="line"><span class="comment">/*		int year = in.nextInt();</span></span><br><span class="line"><span class="comment">		int start = in.nextInt();</span></span><br><span class="line"><span class="comment">		int end = in.nextInt();</span></span><br><span class="line"><span class="comment">		</span></span><br><span class="line"><span class="comment">		zhou.forvevrLove(year, start, end);*/</span></span><br><span class="line">		</span><br><span class="line">		zhou.forvevrLove(<span class="number">2017</span>, <span class="number">2</span>, <span class="number">108</span>);</span><br><span class="line">	&#125;</span><br><span class="line">	</span><br><span class="line">	</span><br><span class="line">	</span><br><span class="line">	<span class="function"><span class="keyword">private</span> <span class="keyword">void</span> <span class="title">forvevrLove</span><span class="params">(<span class="keyword">int</span> year , <span class="keyword">int</span> start , <span class="keyword">int</span> end)</span></span>&#123;</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">int</span>[] date = leapYear(year);</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">for</span>(<span class="keyword">int</span> i = <span class="number">1</span> ; i &lt; date.length ; i++)&#123;</span><br><span class="line">			<span class="keyword">for</span>(<span class="keyword">int</span> j = <span class="number">1</span> ; j &lt;= date[i] ; j++)&#123;</span><br><span class="line">				<span class="keyword">for</span>(<span class="keyword">int</span> k = start ; k &lt;= end ; k++)&#123;</span><br><span class="line">					String number = String.valueOf(i)+</span><br><span class="line">							String.valueOf(j &gt; <span class="number">9</span> ? j :<span class="string">"0"</span>+String.valueOf(j));</span><br><span class="line">					<span class="keyword">if</span>(sumTao(number , k) == FORVEVR_LOVE)&#123;</span><br><span class="line">						System.out.println(i+<span class="string">"月"</span>+j+<span class="string">"日是"</span>+k+<span class="string">"进制的情人节"</span>);</span><br><span class="line">					&#125;</span><br><span class="line">				&#125;</span><br><span class="line">			&#125;</span><br><span class="line">		&#125;</span><br><span class="line">		</span><br><span class="line">		</span><br><span class="line">		</span><br><span class="line">		</span><br><span class="line">	&#125;</span><br><span class="line">	</span><br><span class="line">	</span><br><span class="line">	<span class="function"><span class="keyword">private</span> <span class="keyword">int</span> <span class="title">sumTao</span><span class="params">(String number , <span class="keyword">int</span> sys)</span></span>&#123;</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">int</span> n = number.length();</span><br><span class="line">		<span class="keyword">int</span>[] temp = <span class="keyword">new</span> <span class="keyword">int</span>[n];</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">for</span>(<span class="keyword">int</span> i = <span class="number">0</span> ; i &lt; n ; i++)&#123;</span><br><span class="line">			temp[i] = Integer.parseInt(String.valueOf(number.charAt(i)));</span><br><span class="line">		&#125;</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">int</span> sum = <span class="number">0</span>;</span><br><span class="line">		<span class="keyword">for</span>(<span class="keyword">int</span> i = <span class="number">0</span> ; i &lt; n ; i++)&#123;</span><br><span class="line">			sum += temp[i]*Math.pow(sys, temp.length-i-<span class="number">1</span>);</span><br><span class="line">		&#125;</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">return</span> sum;</span><br><span class="line">		</span><br><span class="line">		</span><br><span class="line">	&#125;</span><br><span class="line">	</span><br><span class="line">	</span><br><span class="line">	<span class="keyword">private</span> <span class="keyword">int</span>[] leapYear(<span class="keyword">int</span> year)&#123;</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">int</span> flag = <span class="number">0</span>;</span><br><span class="line">		<span class="keyword">if</span>(year%<span class="number">400</span> == <span class="number">0</span> || year%<span class="number">4</span> == <span class="number">0</span> &amp;&amp; year%<span class="number">100</span> == <span class="number">0</span>)&#123;</span><br><span class="line">			flag=flag+<span class="number">1</span>;<span class="comment">//闰年二月多一天</span></span><br><span class="line">		&#125;</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">int</span>[] date = <span class="keyword">new</span> <span class="keyword">int</span>[<span class="number">13</span>];</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">for</span>(<span class="keyword">int</span> i = <span class="number">1</span> ; i &lt; <span class="number">13</span> ; i++)&#123;</span><br><span class="line">			<span class="keyword">if</span>(i==<span class="number">1</span> || i==<span class="number">3</span> || i==<span class="number">5</span> || i==<span class="number">7</span> || i==<span class="number">8</span> || i==<span class="number">10</span> || i==<span class="number">12</span>)&#123;</span><br><span class="line">				date[i] = <span class="number">31</span>;</span><br><span class="line">				<span class="keyword">continue</span>;</span><br><span class="line">			&#125;</span><br><span class="line">			<span class="keyword">if</span>(i==<span class="number">4</span> || i==<span class="number">6</span> || i==<span class="number">9</span> || i==<span class="number">11</span>)&#123;</span><br><span class="line">				date[i] = <span class="number">30</span>;</span><br><span class="line">				<span class="keyword">continue</span>;</span><br><span class="line">			&#125;</span><br><span class="line">			<span class="keyword">if</span>(i==<span class="number">2</span>)&#123;</span><br><span class="line">				date[i]=<span class="number">28</span>+flag;</span><br><span class="line">			&#125;</span><br><span class="line">		&#125;</span><br><span class="line">		</span><br><span class="line">		<span class="keyword">return</span> date;</span><br><span class="line">	&#125;</span><br><span class="line">	</span><br><span class="line"></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
</blockquote>
<p><iframe frameborder="no" border="0" marginwidth="0" marginheight="0" width="298" height="52" src="//music.163.com/outchain/player?type=2&id=431791474&auto=1&height=32"></iframe></p>
<blockquote>
<p>输出结果<br>4月10日是18进制的情人节<br>5月22日是16进制的情人节<br>9月16日是12进制的情人节</p>
</blockquote>

      
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